Prince Harry and Meghan Markle famously gave up their royal duties and moved to the United States where they are pursuing careers in activism, philanthropy and film and television production. They currently live in Montecito, Calif., with their two children — Archie, 4, and Lilibet, 2. Despite growing up far from the U.K. and traditional expectations of royal responsibilities, they are both officially in the line of succession. It was confirmed that both children would be allowed to use their birthright titles of Prince Archie and Princess Lilibet of Sussex in March 2023 after Lilibet was chri…